Nouns ending in a consonant followed by -y change the -y to -ies in the plural form.
Harmony is regular. It follows the -ies Conversion rule.
Use plural verbs: "The harmonies are ready" (not "is ready").
Yes. The plural harmonies is standard across all English variants.
The word harmony follows the standard English pluralization rule. When forming the plural, harmony becomes harmonies. This follows the -ies Conversion pattern, which is one of the most common plural rules in English.
Understanding why harmony becomes harmonies helps with spelling and pronunciation. Nouns ending in a consonant followed by -y change the -y to -ies in the plural form.
When using harmonies in writing, remember that it functions as a plural noun in sentences. It pairs with plural verbs and pronouns. For example: "The harmonies are ready" (not "is ready"). This subject-verb agreement is essential for grammatical correctness.